well, 愛 is a feeling we can't help having. its like this big bright hole that あなた suddenly find urself falling into.the light is blinding your eyes and あなた can't see anything. あなた feel like everything has changed. and then your eyes adapt and so do you. あなた open your eyes and suddenly this whole new place pops out. everythings the same but different. suddenly the parking lot in front ur school looks like heaven. the stpid lamp post あなた used to kick so often looks like an angel, the gods messenger. love, the slight touch of it changes everything.. あなた find urself smiling alone, 空想 a lot even fantasizing.. it makes あなた a better person.. although i'm not saying that 愛 is a necessary boon for us. all i can say is あなた need to drop into the hole to find the light...